After getting a good deal on nine 55-gallon white food-grade barrels (five bucks each!) , hubby and I cleaned out the honey syrup residues and painted them black to help prevent sunlight from encouraging algae growth. (Not that too much sunlight is a problem here in western Washington, ha, ha.) Now we'd like to set up what's called a PARALLEL RAIN BARREL SYSTEM outside the coop for refilling the waterers. Here's what I'm planning to have built: If you look closely at the picture, you can see that there's a single tap into the common pipe under the support, so that all the barrels drain evenly. I got the idea from hyperlinking off another garden article discussing rain barrel use in drought conditions: http://www.emmitsburg.net/gardens/articles/adams/audrey/water_barrel.htm Even if all you have is a single rain barrel under a downspout on your coop, I'd love to see pictures of what you did and any info about how it's working for you. Thanks!